NMR Chemical Shift Mapping of SH2 Peptide Interactions.
 

NMR Chemical Shift Mapping of SH2 Peptide Interactions.

Related Articles NMR Chemical Shift Mapping of SH2 Peptide Interactions.

Methods Mol Biol. 2017;1555:269-290

Authors: McKercher MA, Wuttke DS

Abstract
Heteronuclear single quantum coherence (HSQC) nuclear magnetic resonance (NMR) experiments offer a rapid and high resolution approach to gaining binding and conformational insights into a protein-peptide interaction. By tracking (1)H and (15)N chemical shift changes over the course of a peptide titration into isotopically labeled protein, amide NH pairs of amino acids whose chemical environment changes upon peptide binding can be identified. When mapped onto a structure of the protein, this approach can identify the peptide-binding interface or regions undergoing conformation changes within a protein upon ligand binding. Monitoring NMR chemical shift changes can also serve as a screening technique to identify novel interaction partners for a protein or to determine the binding affinity of a weak protein-peptide interaction. Here, we describe the application of NMR chemical shift mapping to the study of peptide binding to the C-terminal SH2 domain of PLC?1.


PMID: 28092038 [PubMed - in process]



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